Dr.J20

Hey everybody, I'm pretty new here still, though i've been cruising the forums picking up gems of knowledge all over the place; thanks for all the help so far!
My first attempt at this gardening thing went awry when some silica gel that had cobalt II in it got into my soil damning my girls of bagseed progeny. That was done in a ffof stocked DIY earthbox (pics forthcoming by request). This time around i'm going hempy with the traditional 3:1 perlite:vermiculite blend. Here's the grow specs:

Closet Tent Grow, 1 Room, 1 straight cycle.
Size: 2'x3'x62"
Lights: CFL: 2x105w(1 6500K, 1 2700K), 2x65w (ibid.), 4x42w 2700K, 2x26w 6500K
LED: 2xUFO TriBand 90w
Ventilation: 1 large vortex fan forcing air from closet floor into tent, 1 4"inline inductor fan (80cfm) exhaust from top of tent, 1 6" clip fan for air movement in tent. (1 additional 10" box fan if needed)
H20: All water is RO; even the water i clean with; and the pH is balanced!
Nutrients: FF Nutrient package (Grow Big, Big Bloom, Tiger Bloom) with microbe brew added

seeds: Feminised white rhino from nirvana

A certain DocBud on another forum inspired this germinating method where you use a plastic or styrofoam cup and make a mini hempy that substitutes the vermiculite for ffof. The way he did it was to have the bottom layer of his mini hempy be pure perlite, then the next half was a 50:50 perlite:ffof blend, the top quarter to half inch was straight fox farm soil. I did the same thing and got 4/4; of course tragedy struck when I was removing all the lower wattage lights and knocked over one of the non-sprouted mini-hempy cups...so we're down to three now. The side lights had to be adjusted because the environment was reading 98F and 19% humidity---way out of whack...I got things adjusted within 3 days to where the girls were on a 20/4 schedule with the LEDs acting as the sole light source. I got humidity up to 50% and temps right at 78F but then I had to go out of town so i set up a drip system with a clean 2 L bottle and kept the girls alive until I got back... I dropped light to 18/6 before leaving and temps had hit a low at 58 degrees with humidity dropping to 28% (humidifier had to be turned off). The day i got back my landlord announced he was working on the house all day so the girls got 2 extra hours of dark (16/. So thats a few stresses: some drastic temp. fluctuations, dubious watering, light PAR fluctuation, massive humidity problems...oh and i got antsy and gave 'em a <1/4 dose of nutes with their watering before i left... and i gotta leave em again for another 2 days (hope the 2 L deally works again!).
So, when I transplant they'll go into a large bin with 3:1 Perlite:Vermiculite.

Right now environmental status after pics taken was 83F, 24%
They will be watered before I slumber.

Pics below show growth as of day 10(from germ, day 7 from sprouting) and some miscellaneous pics of the tent/setup--questions about it all are very welcome!

questions from me for right now: will my humidity stress these girls too much and if so would it be unreasonable to add a second humidifier?

what are the dangers/potentials for stress posed by allowing a slow drip of R/O water on the mini-hempy cups while i'm out of town?

Thanks for stopping by!
Be easy,
Dr.J